Oracle11g 查询两个表的联接操作

表：1

EMP_ID      DEPT    BATCH_CODE      DEP_CODE
1234        IT          B4            D1
4567        DESIGN      B5            D2
1232        MARKETING   B6            D3

EMP_ID

是表1中的主键

表格：2

CODE        DESCRITPION
B4           IT DEVELOPMENT
D1           TECHNICAL DESING
B5           SUPPORT
D2           DB DESIGNER
B6           SALES
D3           CASH

预期产出

BATCH CODE      Batch Description   Dep_Code    Dep_Descritpion
B4                IT DEVELOPMENT     D1          TECHNICAL DESING
B5                SUPPORT            D2          DB DESIGNER
B6                SALES              D3          CASH

有人能帮我构造一个查询，从表1和表2的值中获得预期的输出吗？

试试这个查询

select b.CODE BATCH_CODE,b.Description BATCH_Description,
  c.code Dep_Code,c.Description Dep_Descritpion
from table1 a
join table2 b on a.BATCH_CODE=b.CODE
join table2 c on a.DEP_CODE=c.CODE

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你有没有努力过。。如果是这样，请发布您的尝试